.bg{
    border-top: 1px solid transparent;
    height: 900px;
    background: url(../images/zhu1.jpg) no-repeat;
    background-size: 1200px 900px;
}
.successful{
    border-top: 1px solid transparent;
    margin: 50px auto;
    width: 900px;
    height: 800px;
    background-color: white;
}
.successful h2{
    text-align: center;
    margin: 30px 0;
    font-size: 20px;
}
.successful li{
    display: inline-block;
    width: 250px;
    margin: 0 0 10px 36px;
}
.successful li img{
    width: 250px;
}
.successful li h3{
    font-size: 18px;
}
.successful li h3 p{
    font-size: 12px;
    font-weight: 400;
}
.successful li h3 span{
    margin-top: 8px;
    display: block;
    font-size: 12px;
    font-weight: 400;
    line-height: 22px;
}
.successful div{
    text-align: center;
    margin-top: 15px;
}
.successful div a{
    margin: 0 3px;
    width: 20px;
    height: 25px;
    line-height: 25px;
    display: inline-block;
    border: 1px solid rgb(214, 214, 214);
}
.successful div a:first-child{
    width: 70px;
    border: none;
}
.successful div a:nth-child(4){
    width: 60px;
}
.successful div a:last-child{
    width: 40px;
}
.successful div a:nth-child(2){
    border: none;
    color: red;
}